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Reports <code>switch</code> statements or expressions
with a too low ratio of switch labels to executable statements.
<p>Such <code>switch</code> statements
may be confusing and should probably be refactored.</p>

<p>Example:</p>
<pre><code>
    switch (i) { // one case and 5 executable statements -> 20% density
        case 1:
            System.out.println("1");
            System.out.println("2");
            System.out.println("3");
            System.out.println("4");
            System.out.println("5");
            break;
    }
</code></pre>
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<p>
<p>Use the <b>Minimum density of branches</b> field to specify the allowed ratio of the switch labels to executable statements.</p>
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